Izvestiya vuzov. Yadernaya Energetika

The peer-reviewed scientific and technology journal. ISSN: 0204-3327

Computational Analysis of the Power Conversion Loop of a Nuclear Power Plant Unit with the Closed S-CO2 Brayton Cycle

9/23/2022 2022 - #03 Nuclear power plants

Leskin S.T. Slobodchuk V.I. Shelegov A.S.

DOI: https://doi.org/10.26583/npe.2022.3.02

UDC: 621.039.526:621.1.018.2

The paper presents a computational-theoretical analysis and preliminary optimization of the Brayton cycle using supercritical carbon dioxide (S-CO2). The closed S-CO2 Brayton cycle can be considered as a working cycle at nuclear power plants with advanced reactor facilities. The authors consider various working media that can be used in the Brayton cycle. It is shown that supercritical CO2 has an advantage over other working fluids.

The efficiency of this cycle is evaluated as applied to reactor plants with a liquid metal coolant. In addition, an analysis is made of the influence of the defining characteristics on the efficiency of the cycle, such as the pressure and temperature at the compressor inlet, the pressure at the compressor inlet and the compression ratio, the pressure and temperature at the turbine inlet, as well as the proportion of the working fluid going to the cooler. The main operating parameters of the Brayton cycle are also selected. In conclusion, the authors outline the tasks for further research within the framework of this subject.

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Brayton cycle supercritical CO2 liquid metal cooled reactors recompression thermodynamic cycle

Link for citing the article: Leskin S.T., Slobodchuk V.I., Shelegov A.S. Computational Analysis of the Power Conversion Loop of a Nuclear Power Plant Unit with the Closed S-CO2 Brayton Cycle. Izvestiya vuzov. Yadernaya Energetika. 2022, no. 3, pp. 18-29; DOI: https://doi.org/10.26583/npe.2022.3.02 (in Russian).

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